I haven't tried Sanotint as I also have severe allergies and the reviews here put me off trying it. I know how annoying it is not to be able to dye your grey hair, so i ve searched and tried lots of brands and have settled on Lagona. Do not use Lagona creme colour, but just the regular veg-dye if you are very allergic like I am. Always do the patch test just in case!!! But I ve been very happy about this product. Unfortunately the colour will never be what chemical dyes can give you, but at least I ve found something that covers the grey, doenst turn green or orange and doesnt cause me any harm, and that is a first for me. Hope that maybe some of you also benefit by this product.